Pluto, Charon Details Trickle In
February 29, 2016
Happy Leap Year! New photos from Pluto and Charon continue to show enigmatic features.
More Indications Earth Is Unique
February 25, 2016
The late Carl Sagan might be stunned to see today's astronomers questioning Earth's "humdrum" status.
Hot Jupiters Exasperate Astronomers
February 24, 2016
Nothing has been more upsetting to comfortable theory than the discovery of hot Jupiters around other stars.
Are Paleomagnetic Measurements Reliable?
February 19, 2016
Dating of past geophysical history depends on magnetic measurements that may be in error.
Tiny Enceladus Beats Saturn in Plasma Output
February 17, 2016
An astonishing case of the tail wagging the dog: tiny moon is major source of plasma in Saturn's magnetosphere.
Density Can't Keep Saturn's Rings Old
February 4, 2016
Saturn's B ring is much less dense than previously thought, challenging attempts to keep it billions of years old.
Surprising Youth in the Solar System
January 26, 2016
Four solar system objects in the news look young, not billions of years old.
Earth's Geodynamo: An Energy Crisis
January 25, 2016
A new theory to maintain Earth's magnetic field looks like a case of special pleading to rescue a dogma.
Updates from Outer Planets
January 9, 2016
Let's review some of the latest news from missions to the outer planets.
New Earthrise Is a Stunner
December 24, 2015
Take a look at this image from a lunar orbiter on the 47th anniversary of the historic Apollo 8 "Earthrise" photo.
Stuff Geologists Think They Know Till Tomorrow
December 22, 2015
The science of geology is like quicksand, ever shifting and not rock solid.
Want Salt on Your Ceres?
December 10, 2015
Those mysterious white spots on asteroid Ceres could be outcrops of salt. How did vast amounts of salt get out there?
Tilted Planets Throw Theories Off Kilter
November 30, 2015
An example of how data can be framed as success or failure, depending on the reporter's spin.
There's No Place Like Earth
November 20, 2015
A survey of known exoplanets finds no real estate as valuable as Earth.
New Earth Ocean Theory Is All Wet
November 16, 2015
Time to rewrite the textbooks again. Earth started out wet, scientists now claim, overturning decades of dogma.